781. Under what conditions do gases deviate from ideal behaviour?
A. High temperature
B. Low temperature
C. High Pressure
D. B and C
782. Aluminium bronze is an alloy which has the composition of?
(A) 20% Al and 80% Cu
(B) 30% Al and 70% Cu
(C) 50% Al and 50% Cu
D. 10% Al and 90% Cu
783. Which isotope of hydrogen is radioactive?
(A) Protium
(B) Deuterium
C. Tritium
(D) Ozone
784. Coal gas mainly consists of?
(A) Ethane and Hydrogen
(B) Hydrogen and Oxygen
(C) Methane and Butane
D. Methane and Hydrogen
785. Which of the following gases explodes on compression to a liquid?
(A) Methane
(B) Hydrogen
C. Ethyne
(D) Ethane
786. Which of the following compounds is not considered as an organic compound?
(A) Benzene
B. Carbon Dioxide
(C) Methane
(D) Butane
787. Which of the following statements is correct about Newland’s law?
A. He arranged all known elements in a tabular form.
B. He accommodated heavier elements.
C. He classified elements according to their physical properties.
D. He placed all noble gases.
788. 50 Kg of coal tar on fractional distillation produces benzene amount?
(A) 0.5 to 1 Kg
(B) 2 to 3 Kg
(C) 3 to 5 Kg
D. 10 to 20 Kg
789. Le Chatelier’s principle states that when stress is applied to a system in equilibrium, the system will __ stress.
(A) Not adjust
(B) Always increase
C. Adjust to reduce
(D) Adjust to increase
790. The atomic radii decrease by increasing atomic number in __.
A. Alkali Metal
B. Alkaline earth metal
C. Elements from Li to Ne
D. Halogens
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